Pawel Terlecki is a development manager on the Tableau query team. He holds a PhD in Computer Science from Warsaw University of Technology with specialization in information systems and knowledge discovery, and a BS in Economics from Warsaw University. He published several works on databases and data mining and is a frequent guest at major conferences in these fields. Prior to Tableau he worked on business application, web frameworks, database servers, in particular MS SQL Server, and data mining projects. Pawel has made many contributions in the Tableau Data Engine, caching infrastructure or data extraction. At Tableau, his focuses are vision, design and implementation of query processing elements of the Tableau ecosystem.